Calvin



I? (No Model.)

G. O. WOOLWORTH.

WATER MARK 0N PAPER AND DEVICE FOR PRODUGING THE SAME No. 248,001. Patented 0011.4,1881.

UNITED STATES PATENT ()FFICE.

CALVIN O. WOOLWORTH, OF NEW YORK, N. I, A SSIGNOR TO WOOLWORTH SUYGRAHAM, OF SAME PLACE.

WATER-MARK ON PAPER AND DEVICE FOR PRODUCING THE SAME.

SPECIFICATION forming part of Letters Patent No. 248,001, dated October 4, 1881.

Application filed September 5, 1881. (No model.) i

To all whom it. may concern Be it known that I, CALVIN O. WooLWoRTH, a citizen of the United States. residing at New York, in the county of New York and State of New York, have invented new and useful Im-' provements in Water-Marks on Paper and in Devices for Producing the Same, of which the following is a specification.

This invention relates to improvements in 1o water-marks on paper, whereby letters 'and watermarked letters and figures upon paper in which the characters constituting the watermark have a full flat surface from edge to edge thereacross, as well upon the widest as upon the narrowest parts of said characters.

In the drawings forming part of this specification, Figure 1 illustrates the dandy-roll of a paper-machine constructed with watermarking appliances according to my invention. Fig. 2 illustrates the water-mark as it appears upon a sheet of paperwlieri produced according to my invention.

In the drawings, a or represent water-mark letters on a sheet of paper, 0.

I) is a watermark figure, also on said sheet. 01 is a dandy-roll, and 6 indicates the water- 3 5 mark-producing letters and character on said dandy-roll.

Instead of forming water-mark letters and devices on the dandy-roll by suitably attachin ,9: wire thereto bent to form letters and other objects, as is ordinarily done, I cut my Water- 4 mark devices 0 from sheet metal or other suitable material and secure them upon, or partiallylet them into, the face of said roll, as shown in Fig. 1, causing said devices 6 to be so bent as to conform to the cylindrical surface 5 of said roll.

Thus a great variety of designs may be watermarked on paper not heretofore attainable when limited to such only ascould be formed from wire, and thus producing full-faced we.-

termarked letters a upon paper, and such fullfaced figures as the anchor b and other designs, all the parts of said letters and figures which in printing would be made full-faced for the sake of symmetry and broad effects being producible by water-mark upon paper by the use of my improvements.

What I claim as my invention is- 1. The within-described improvement in the art of watermarking paper, which consists in forming thereupon letters and figures whose various parts have fullwater-mark depressions from edge to edge across the face thereof, in contradistinction tooutlined letters and figures, substantially as set forth.

2. The within-described improved watermarking devices, which consist of the dandyroll d, having full-faced letters or figures, or both,secured to the cylindrical surface thereof, substantially as and for the purpose set forth. 7o

' CALVIN G. VVOOLWORTH.

WVitnesses:

B. F. POND, HENRY E. J ones. 7 

